Flash Flooding in Nebraska, July 10, 2006

Name: Flash Flooding in Nebraska, July 10, 2006
Start: 2006-07-10T07:01
End: 2006-07-10T10:00
Location: Nebraska

July 10, 2006 · NWS GID · 2 events in 2 counties and zones

Morning thunderstorms produced heavy rains that caused flooding in central Dawson into western Buffalo counties.

Where it happened

Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $50,000
Crop damage: $500,000
Events: 2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS GID wrote it up.

Morning thunderstorms produced heavy rains that caused flooding in central Dawson into western Buffalo counties.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hastings, NE wrote its last area forecast discussion before the first event at Jul 10, 2:17 AM CST, 4 hours 44 minutes earlier.

Area forecast discussion, Jul 10, 2:17 AM CST, 4 hours 44 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
317 AM CDT MON JUL 10 2006

.DISCUSSION...MAIN FORECAST CHALLENGE CENTERS AROUND CHANCES OF
PRECIPITATION TODAY AND TONIGHT. KUEX DOPPLER RADAR SHOWING
WIDESPREAD LOW LEVEL CONVECTIVE ACTIVITY OVER SOUTHEAST PORTIONS OF
THE FORECAST AREA WITH A SECONDARY...BUT MUCH SMALLER...CLUSTER OF
ACTIVITY OVER BUFFALO AND DAWSON COUNTIES. AIRMASS IS RATHER
TROPICAL WITH SURFACE DEW POINTS RANGING FROM THE MID 60S TO AROUND
70 DEGREES. THE REMAINDER OF THE AIRMASS IS VERY WARM AND MOIST WITH
FREEZING LEVELS AROUND 17K AND PRECIPITABLE WATER VALUES NOW
EXCEEDING 1.5 INCHES. MOST STORMS THAT ARE DEVELOPING AT THIS TIME
ARE VERY EFFICIENT RAIN PRODUCERS WITH DOPPLER ESTIMATES REACHING UP
TO 2 INCHES IN CERTAIN LOCATIONS...HOWEVER...NO PROBLEMS CURRENTLY
NOTED WITH HEAVY RAINFALL IN THE AREA.

A RELATIVELY COOLER AND WET DAY IS ON TAP FOR TODAY AS PRECIPITABLE
WATER VALUES CONTINUE TO GET PUMPED UP OVER SOUTH CENTRAL NEBRASKA
AND NORTH CENTRAL KANSAS AHEAD OF AN UPPER LEVEL TROUGH APPROACHING
FROM THE FRONT RANGE OF THE ROCKIES. AN EXTREMELY MOIST AIRMASS WILL
BE IN PLACE AS THE UPPER TROUGH AND ASSOCIATED DYNAMICS PASS ACROSS
THE REGION AROUND MIDDAY. MODERATE LOW LEVEL MOISTURE CONVERGENCE
WILL LEND TO THE UPPER DYNAMICS FOR WIDESPREAD SHOWER AND
THUNDERSTORM DEVELOPMENT THROUGHOUT THE DAY. BECAUSE OF THIS...HAVE
GONE WITH LIKELY POPS ALL LOCATIONS WITH CHANCES OF RAIN DECREASING
FROM WEST TO EAST LATE THIS AFTERNOON AS THE MAIN DYNAMICS
ASSOCIATED WITH THE UPPER TROUGH PASS TO THE EAST.
ADDITIONALLY...CONSIDERABLE CLOUD COVER WILL KEEP HIGH TEMPERATURES
DOWN IN THE UPPER 70S TO LOWER 80S.

CHANCES OF PRECIPITATION WILL WIND DOWN OVERNIGHT TONIGHT AS THE
UPPER TROUGH SLOWLY PASSES TO THE EAST AND A DRIER
WEST-NORTHWESTERLY FLOW BEGINS TO DEVELOP OVER THE CENTRAL PLAINS.
HOWEVER...SLIGHT CHANCES OF SHOWERS AND THUNDERSTORMS WILL CONTINUE
INTO TUESDAY MAINLY OVER THE EASTERN FORECAST ZONES. THESE CHANCES
WILL DIMINISH GREATLY IN THE LATE AFTERNOON AND EARLY EVENING HOURS
AS A MUCH MORE SUBSIDENT NORTHWEST FLOW DEVELOPS ALOFT IN RESPONSE
TO HIGH PRESSURE RIDGING OVER THE ROCKY MOUNTAINS. CLEARING SKIES
AND BUILDING HIGH PRESSURE WILL CAUSE HIGH TEMPERATURES ON TUESDAY
TO RISE ABOVE VALUES THAT WILL BE SEEN TODAY.

ON TUESDAY NIGHT...THE UPPER LEVEL RIDGE AXIS WILL PASS ACROSS OUR
AREA AND BRING FAIR SKIES WITH WARMER OVERNIGHT LOW TEMPERATURES. ON
WEDNESDAY...THE UPPER RIDGE AXIS WILL BE JUST TO OUR EAST AND
DAYTIME HIGH TEMPERATURES WILL JUMP A GOOD 10 DEGREES FROM VALUES
SEEN ON TUESDAY. HIGH TEMPERATURES WILL GENERALLY BE IN THE MID TO
UPPER 90S WITH DRY CONDITIONS EXPECTED.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
KS...NONE.

&&

19

Hazardous weather outlook, Jul 10, 4:38 AM CST, 2 hours 23 minutes before

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE HASTINGS NE
538 AM CDT MON JUL 10 2006

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
111200-
PHILLIPS-SMITH-JEWELL-ROOKS-OSBORNE-MITCHELL-VALLEY-GREELEY-NANCE-
SHERMAN-HOWARD-MERRICK-POLK-DAWSON-BUFFALO-HALL-HAMILTON-YORK-
GOSPER-PHELPS-KEARNEY-ADAMS-CLAY-FILLMORE-FURNAS-HARLAN-FRANKLIN-
WEBSTER-NUCKOLLS-THAYER-
538 AM CDT MON JUL 10 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL NEBRASKA AND
PORTIONS OF NORTH CENTRAL KANSAS.

.DAY ONE...TODAY AND TONIGHT

NUMEROUS THUNDERSTORMS WILL DEVELOP ACROSS THE ENTIRE OUTLOOK
AREA TODAY. THE PRIMARY HAZARDS FROM THESE STORMS WILL BE AREAS OF
HEAVY RAINFALL AND DANGEROUS LIGHTNING. THE THUNDERSTORMS WILL
SLOWLY DIMINISH THIS EVENING AND OVERNIGHT TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE WILL BE SLIGHT CHANCES OF THUNDERSTORMS ON TUESDAY. ALL
THUNDERSTORMS ARE CAPABLE OF PRODUCING DANGEROUS LIGHTNING. HOT
AND DRY CONDITIONS ARE EXPECTED BEGINNING ON WEDNESDAY AND
CONTINUING THROUGH THE REST OF THE WEEK. AFTERNOON TEMPERATURES WILL
REACH INTO THE UPPER 90S WITH HEAT INDEX READINGS OVER 100 DEGREES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

&&

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB PAGE:
   HTTP://WWW.WEATHER.GOV/HASTINGS  (ALL LOWERCASE)

19

The radar

The Grand Island radar (KUEX), 131 km away, was scanning. The volume nearest the first event began at 12:59 UTC.

Open the radar archive at this moment

Event by event

2 flash flood. Local standard time, as filed.

Flash Flood, Dawson

When: July 10, 7:01 AM CST to 10:00 AM CST
Where: Dawson County, Central Portion
Property damage: $30,000
Crop damage: $250,000
Reported by: LAW ENFORCEMENT
Coordinates: 40.870, -99.820 (the zone’s center; the record gives no point)

Flash Flood, Buffalo

When: July 10, 7:01 AM CST to 10:00 AM CST
Where: Buffalo County, West Portion
Property damage: $20,000
Crop damage: $250,000
Reported by: BROADCAST MEDIA
Coordinates: 40.855, -99.075 (the zone’s center; the record gives no point)

What these are

Flash Flood: Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Nebraska in 2006 Every state in 2006 This day in weather history Warnings in Nebraska, July 2006

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5524596, 5524597.